| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Not at all free | 12 |
1%
|
| 2 | Not very free | 54 |
4.5%
|
| 3 | Somewhat free | 212 |
17.8%
|
| 4 | Completely free | 900 |
75.6%
|
| 9 | Don't know | 12 |
1%
|
| 998 | Refused | 0 |
0%
|